Tube



FIG. 1 is a perspective view of a tube showing my new design;

FIG. 2 is a front view thereof, a rear view being identical to the frontview thereof;

FIG. 3 is a plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof, a left side view being identical tothe right side view thereof; and,

FIG. 6 is a cross-sectional view thereof along the line 6-6 in FIG. 5.

The broken lines depict portions of the tube that form no part ofclaimed design.

CLAIM The ornamental design for a tube, as shown and described.